chromosomes

Why is DNA important?

• it is very small and very complicated

• it's in everything

• it controls traits of all living things

• because we eat it every day for energy

Where are DNAs?

• cell membrane

• vacuole

• chloroplast

• nucleus

The drawing shows the structure of what molecule?

• A DNA molecule
• A lipid molecule
• A carbohydrate molecule
• A protein molecule

True or False? A tightly wound bundle of DNA is a chromosome.

• False
• True

Characteristics or features that can be passed from one generation to another is

• heredity

• trait

• gene

• nature

What is a gene?

• A bundle (like a hot dog bun) that the DNA is packed into
• something inside the nucleus
• a piece of DNA
• all of your DNA

There is a segment of DNA that codes for every trait that a person has.

These segments of DNA are found on chromosomes and are called ________.

• Deoxyribonucleic acid

• Genes

• Heredity

• Recessive Traits

A long piece of coiled DNA found in the cells; contains genes that encode traits.

• gene

• chromosome

• trait

• DNA

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA
• DNA is made of chromosomes
• DNA and chromosomes are the same thing.
• All of the above are correct

Why are your chromosomes arranged in pairs?

• Scientists have no idea
• Because you get one from your mom and one from your dad
• Because pairs can divide easier
• Because DNA is awesome